We manufacture and supply the best sealer (15 year limit replace warranty) cleaners and polish. All made to easily help you increase profits on every job. The effectiveness of InvisaBLOCK relies on proper pre-cleaning, application, and curing of the formula. Pre-cleaning and application must be performed by a certified InvisaBlOCK professional in order to be covered by this warranty. Proper care of the treated surface is essential to warranty coverage; treated surfaces should be cleaned only with pH-neutral, surfactant-free cleaners, such as InvisaBLOCK Stone Cleaner, or another specialized cleaner recommended by your authorized InvisaBLOCK dealer, or water.